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hi, i have just bought some carbs off ebay for my gs1000 hc, the carbs i have got on at the moment are attached to the standed airbox, but the one i have bought have the bellmouths on, and have been jetted, do you think i should take the airbox off and put the new carbs on with the bellmouths or should i take the bellmouths off and attach them to the airbox, could anyone advise me what would be the best thing to do. thanks steve.
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Welllllllllll...if the carbs that you bought have velocity stacks on them, there is a good chance that they have been rejetted. If your running stock exhaust, you'll most likely be running too rich. You'll have to pull the bowls and have a look at the jets, making sure they match the ones that you have in your bike now. -
what are velocity stacks? im not sure what you guys are talking aboutComment
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A velocity stack is a tapered or fluted piece that fits on the intake side of the carb bodies. They are used to increase the air flow into the carbs and keep it flowing at a directed rate without the creation of a vortex at the intake throat of the carb body. :shock:Originally posted by 80GS750 View PostComment
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Random observation: I noticed the rubber airbox boots on my 750 have a velocity stack-esque shape. Of course they terminate inside the airbox, so who knows if it makes a difference or not...Comment
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so its the same shape as a tapered pod filter but does not filter anything? then you add a filter to it right?Comment
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You generally see them on racebikes, sans filter.Originally posted by 80GS750 View Post
Here's a pic (found on Google images):
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ok, thats what i was imagining, i have seen those on older cars too on top of the carbs... duhComment
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